Suggested Searches

 

1 min read

Chandra Deep Field-North

Chandra Deep Field-North
The Chandra Deep Field-North image was made by observing an area of the sky over half the size of the full moon for 23 days. It is the most sensitive or "deepest" X-ray exposure ever made. By combining the Chandra and Hubble data for this field, astronomers can take a census of the fraction of young galaxies that contain active supermassive black holes back to a time when the universe was only about one billion years old, less than 10 percent of its present age. The data show that these very distant supermassive black holes are rare, more so than some expected.

About the Object

  • R.A. Position
    R.A. PositionRight ascension – analogous to longitude – is one component of an object's position.
    12h 36m 55s
  • Dec. Position
    Dec. PositionDeclination – analogous to latitude – is one component of an object's position.
    +62° 14' 15"
  • Constellation
    ConstellationOne of 88 recognized regions of the celestial sphere in which the object appears.
    Ursa Major

About the Data

  • Instrument
    InstrumentThe science instrument used to produce the data.
    CXO>ACIS
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    November 1999; February and November 2000; February, March, and November 2001; and February 2002, Exposure Time: 2 milliseconds
  • Filters
    FiltersThe camera filters that were used in the science observations.
    0.5-2keV, 2-4keV, and 4-8keV
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Great Observatories Origins Deep Survey, GOODS, Hubble Deep Field, Chandra Deep Field - North, CDF-N
  • Object Description
    Object DescriptionThe type of astronomical object.
    Field of X-ray objects
  • Release Date
    June 19, 2003
  • Science Release
    The Secret Lives of Galaxies Unveiled in Deep Survey
    Read the release
  • Credits
    NASA/CXC/Penn State/D.M. Alexander, F.E. Bauer, W.N. Brandt et al.

Downloads

  • 2400 × 2400
    jpg (143.02 KB)
  • 2400 × 2400
    tif (16.49 MB)
  • 800 × 800
    jpg (35.92 KB)
  • PDF
    (261.88 KB)
  • 2400 × 3000
    (247.5 KB)
  • 200 × 200
    (8.48 KB)
  • 250 × 250
    (13.77 KB)
  • 509 × 572
    (35.68 KB)
Chandra Deep Field-North
Color Info
Color InfoA brief description of the methods used to convert telescope data into the color image being presented.

Blue: 4-8keV Green: 2-4keV Red: 0.5-2keV

Related Images & Videos

Hubble Goes 'Deep' to Sample Young Galaxies

Hubble Goes 'Deep' to Sample Young Galaxies

NASA's Hubble Space Telescope reached back to nearly the beginning of time to sample thousands of infant galaxies. This image, taken with Hubble's Advanced Camera for Surveys, shows several thousand galaxies, many of which appear to be interacting or in the process of forming....

Cosmic Timeline

Cosmic Timeline

Observatories continue to reach farther back in time to study the evolution of stars and galaxies. This illustration shows that the Chandra X-ray Observatory and the Hubble Space Telescope's Advanced Camera for Surveys looked back billions of years to see the first galaxies....

HDF-N HST/ACS/WFC Full Mosaic

HDF-N HST/ACS/WFC Full Mosaic

CDF-S HST/ACS/WFC Full Mosaic

CDF-S HST/ACS/WFC Full Mosaic

CDF-N CXO/ACIS Full Image

CDF-N CXO/ACIS Full Image

CDF-S CXO/ACIS Full Image

CDF-S CXO/ACIS Full Image

CDF-N CXO Image with Location of ACS Mosaic and WFPC2 HDF-N

CDF-N CXO Image with Location of ACS Mosaic and WFPC2 HDF-N

CDF-S CXO Image with Location of ACS Mosaic

CDF-S CXO Image with Location of ACS Mosaic

GOODS Mosaic

GOODS Mosaic

The GOODS survey, with targets in the northern and southern skies, covers 60 times the area of the original Hubble Deep Field observations, taken in 1995. In fact, the survey encompasses such a wide area that astronomers tiled together a series of exposures from Hubble's...

GOODS Galaxy Sequence in Time: Near to Far

GOODS Galaxy Sequence in Time: Near to Far

This video scrapbook, assembled from a series of Hubble Space Telescope photographs, shows how galaxies evolve over time. The sequence begins with a small clump of stars that existed when the universe was less than 1 billion years old and ends with a disk galaxy that existed...

Zoom In: Chandra-HST Comparison

Zoom In: Chandra-HST Comparison

This video compares the large area in the northern GOODS field, observed with the Chandra X-ray Observatory, with the smaller region viewed with Hubble's Advanced Camera for Surveys. The video begins with the Chandra field, which is over half the size of the full moon, and then...

X-Ray Sources

X-Ray Sources

This video sequence pinpoints the seven X-ray sources [supermassive black holes] discovered in the southern field with the Chandra X-ray Observatory that cannot be seen in the Hubble view. The sequence begins with a view of the full Chandra field. Small boxes appear which...

Interview with Dr. Mauro Giavalisco: Part 1

Interview with Dr. Mauro Giavalisco: Part 1

Interview segment with Dr. Mauro Giavalisco, Associate Astronomer at Space Telescope Science Institute. Clip references the importance of the GOODS project and the highlights, surprises, and reassuring evidence found.

Interview with Dr. Mauro Giavalisco: Part 2

Interview with Dr. Mauro Giavalisco: Part 2

Interview segment with Dr. Mauro Giavalisco, Associate Astronomer at Space Telescope Science Institute. Clip references the importance of the GOODS project and the highlights, surprises, and reassuring evidence found.

Interview with Dr. Harry Ferguson: Part 1

Interview with Dr. Harry Ferguson: Part 1

Interview segment with Dr. Harry Ferguson, Associate Astronomer at Space Telescope Science Institute. Clip references what the GOODS survey is and the role in the project of the Hubble's Advance Camera for Surveys.

Interview with Dr. Harry Ferguson: Part 2

Interview with Dr. Harry Ferguson: Part 2

Interview segment with Dr. Harry Ferguson, Associate Astronomer at Space Telescope Science Institute. Clip references what the GOODS survey is and the role in the project of the Hubble's Advance Camera for Surveys.

Interview with Dr. Niel Brandt: Part 1

Interview with Dr. Niel Brandt: Part 1

Interview segment with Dr. Niel Brandt, Associate Professor of Astronomy and Astrophysics at Penn State University. Clip references Chandra's role in the GOODS project and the observations of the number of supermassive black holes in very distant galaxies.

Interview with Dr. Niel Brandt: Part 2

Interview with Dr. Niel Brandt: Part 2

Interview segment with Dr. Niel Brandt, Associate Professor of Astronomy and Astrophysics at Penn State University. Clip references Chandra's role in the GOODS project and the observations of the number of supermassive black holes in very distant galaxies.

Interview with Dr. Anton Koekemoer: Part 1

Interview with Dr. Anton Koekemoer: Part 1

Interview segment with Dr. Anton Koekemoer, Scientist at Space Telescope Science Institute. Clip references how Chandra detected X-ray sources not seen optically by Hubble and the interpretation of these results.

Interview with Dr. Anton Koekemoer: Part 2

Interview with Dr. Anton Koekemoer: Part 2

Interview segment with Dr. Anton Koekemoer, Scientist at Space Telescope Science Institute. Clip references how Chandra detected X-ray sources not seen optically by Hubble and the interpretation of these results.

Share

Details

Last Updated
Feb 17, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

Related Terms

Keep Exploring

Discover More Topics From NASA

Hubble Space Telescope

Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.

Hubble Science Highlights

Hubble Images

Hubble News